Issue №28 10.34907JPQAI.2020.25.88.001; 10.34907JPQAI.2020.98.52.002; 10.34907JPQAI.2020.82.52.003; 10.34907JPQAI.2020.94.17.004; 10.34907JPQAI.2020.48.31.005; 10.34907JPQAI.2020.22.25.006; 10.34907JPQAI.2020.17.53.007; 10.34907JPQAI.2020.57.53.008; 10.34907JPQAI.2020.85.74.009